EP 1034209 A1 20000913 - AQUEOUS SILICON DISPERSIONS, FORMULATIONS IN PARTICULAR OF PAINTS CONTAINING THEM AND ONE METHOD FOR PREPARING THEM
Title (en)
AQUEOUS SILICON DISPERSIONS, FORMULATIONS IN PARTICULAR OF PAINTS CONTAINING THEM AND ONE METHOD FOR PREPARING THEM
Title (de)
WÄSSRIGE SILIKONDISPERSIONEN, DIESE ENTHALTENDE ZUSAMMENSETZUNGEN, INSBESONDERE FARBEN, UND EIN HERSTELLUNGSVERFAHREN
Title (fr)
DISPERSIONS SILICONES AQUEUSES, FORMULATIONS NOTAMMENT DE PEINTURES LES COMPRENANT ET L'UN DE LEUR PROCEDE DE PREPARATION
Publication
Application
Priority
- FR 9802449 W 19981117
- FR 9714681 A 19971118
Abstract (en)
[origin: FR2771098A1] Aqueous silicone dispersion contains polysiloxanes which are already crosslinked or which can be crosslinked by polycondensation. Aqueous silicon dispersion, used in paint formulations, is claimed in which the droplets of the non-aqueous phase are obtained from at least one polysiloxane (POS) resin A which, before emulsifying, has at least 0.05 wt.% condensable hydroxyl substituents and siloxyl groups D, T and, optionally, M and/or Q such that T \/ (M + D + T + Q) = preferably 0.55-0.80. The non-aqueous phase comprises: 100 pts.wt. A substituted by at least one activation function Fa ; 0-20 pts.wt. at least one basic activator B selected from hydrosoluble or hydrodispersible amine or products obtained from silane and/or oligo- or polysiloxane which have hydroxyl group and Fa group; greater than 0 pts.wt. catalyst C selected from organometallic compounds especially dialkyltin dicarboxylates; 0-30 pts.wt. co-crosslinking agent D chosen from products obtained from silane and/or siloxane with, initially, at least two functions of the type -Rd in which Rd = H or 1-20 C aliphatic, D optionally being substituted by at least one Fa group per molecule; and 0-10 pts.wt. surfactant. B is absent from the composition if, and only if, the Fa groups in the other components are present in sufficient quantity. Independent claims are also included for the following: (1) an aqueous formulation containing the dispersion; and (2) preparation of and formulation.
IPC 1-7
IPC 8 full level
C08J 3/03 (2006.01); C08L 83/04 (2006.01)
CPC (source: EP)
C08J 3/03 (2013.01); C08L 83/04 (2013.01); C08G 77/045 (2013.01); C08G 77/16 (2013.01); C08G 77/80 (2013.01); C08J 2383/04 (2013.01)
Citation (search report)
See references of WO 9925757A1
Designated contracting state (EPC)
AT BE DE FR GB IT NL
DOCDB simple family (publication)
FR 2771098 A1 19990521; FR 2771098 B1 20040813; AT E258948 T1 20040215; AU 1243599 A 19990607; DE 69821522 D1 20040311; DE 69821522 T2 20040708; EP 1034209 A1 20000913; EP 1034209 B1 20040204; WO 9925757 A1 19990527
DOCDB simple family (application)
FR 9714681 A 19971118; AT 98955675 T 19981117; AU 1243599 A 19981117; DE 69821522 T 19981117; EP 98955675 A 19981117; FR 9802449 W 19981117